TY  - BOOK
AU  - Bates,Frank
AU  - Douglas,Mary L.
TI  - Programming language/one: with structured programming 
SN  - 0137304579
PY  - 1975///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - PL/I (Computer program language)
N1  - Includes index
ER  -